CN105062446A - Granular profile control water-plugging agent - Google Patents
Granular profile control water-plugging agent Download PDFInfo
- Publication number
- CN105062446A CN105062446A CN201510534826.0A CN201510534826A CN105062446A CN 105062446 A CN105062446 A CN 105062446A CN 201510534826 A CN201510534826 A CN 201510534826A CN 105062446 A CN105062446 A CN 105062446A
- Authority
- CN
- China
- Prior art keywords
- plugging agent
- water
- controlling
- parts
- particulate state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/5045—Compositions based on water or polar solvents containing inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/514—Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Abstract
The invention relates to a granular profile control water-plugging agent and belongs to the field of oilfield chemistry. The granular profile control water-plugging agent is characterized by being prepared from, by weight parts, 100-200 parts of acrylamide monomer, 300-500 parts of acrylic acid, 0.5-1 part of N,N-methylene diacrylamide, 1-2 parts of initiator, 0-400 parts of functional filler, 10-50 parts of basic compounds, 2-3 parts of potassium ferricyanide and 500-700 parts of water. The granular profile control water-plugging agent is expanded when met with water after being injected into the stratum, the sweep efficiency of the injected water can be improved to a large extent, and the water injection profile of the stratum is improved and protected from the influence of the stratum factor. The granular profile control water-plugging agent has the advantages of being low in production cost and good in water-plugging effect.
Description
Technical field
The invention belongs to field of oilfield chemistry, be specifically related to a kind of particulate state profile-controlling and plugging agent.
Background technology
Oil field water outlet is ubiquitous problem in oilfield development process.Due to the nonuniformity of the primary of stratum or rear life, fluid mobility difference and other reasons, form current predominant pathway in the earth formation, cause water cone, water breakthrough, water fingering, make some oil well premature water breakthrough or water loggings, water drive poor efficiency or inefficient cycle.China's major part oil field enters high water-cut stage all, and recovery ratio significantly declines.Increasing water plugging and profiling technology is applied in oil field, and obtains certain effect, but, still there are some problems.At present, in the chemical process adopted in the water-plugging technique of major part oil field, main employing is underground crosslinked mode, this kind of crosslinking method is subject to F impact, the intensity of plastic is more weak, cause the ability of resistance to erosion weak, sometimes not even plastic, and for handiness aperture, stratum also and bad.Meanwhile, in order to the profile control and water plugging effect obtained, usually use price raw material costly, but effect is still bad sometimes.To improve the recovery ratio in oil field, reach good water plugging and profile controlling effect, one of them way is exactly will manage to increase the sweep efficiency of profile-controlling and plugging agent in oil well.
Summary of the invention
In order to solve technical problem existing in background technology, the invention provides a kind of particulate state profile-controlling and plugging agent, the present invention, not by the impact of F, can improve the intake profile that the sweep efficiency injecting water improves stratum significantly, and with low cost, water plugging effect is very good.
Concrete technical solution of the present invention is:
A kind of particulate state profile-controlling and plugging agent, comprise the raw material pressing row parts by weight to make: acrylamide monomer 100-200, vinylformic acid 300-500, N, N-methylene bisacrylamide 0.5-1, initiator 1-2, functional stuffing 0-400, alkaline matter 10-50, Tripotassium iron hexacyanide 2-3, water 500-700.
Wherein, initiator be persulphate, the mixture that forms according to weight ratio 1:1 of sodium bisulfite.The polyreaction that the free radical that mixed initiator of the present invention utilizes the transfer transport between Oxidizing and Reducing Agents to generate causes.Can initiated polymerization at a lower temperature, can speed of reaction be improved, reduce energy consumption.Sulphur in persulphate is+7 valencys, there is strong oxidizing property, sulphur in sodium bisulfite is+4 valencys, there is reductibility, both redox, sulfur chemistry valency in both is all classified as+6, and the transfer transport occurred during utilizing redox can form redox initiation system and be used in the polyreaction of macromolecular compound.
Functional stuffing is the mixture of one or more in clay, wilkinite, xylogen, diatomite.
Alkaline matter is sodium hydroxide or sodium bicarbonate.
Its preparation method is: by water, vinylformic acid, acrylamide monomer, N, N-methylene bisacrylamide, the Tripotassium iron hexacyanide mix by proportioning, add functional stuffing at 20 degrees celsius, alkaline matter is added after stirring, regulate pH value 7.0, add initiator, temperature controls at 40-50 degree Celsius, be polymerized 2-3 hour plastic, then carry out granulation, oven dry, pulverizing rear mistake 60 mesh sieve.
Wherein, N, N-methylene bisacrylamide is linking agent, and the Tripotassium iron hexacyanide has delayed coagulation.
Advantage of the present invention is: after plugging agent of the present invention injects underground, and water-swellable largely can improve the sweep efficiency injecting water, improve the intake profile on stratum, can from the impact of stratum ignorance factor; The functional stuffing price adopted is comparatively cheap, joins in the higher acrylic raw materials of price, carries out copolymerzation with cross-linking, reduce the cost of product; Particulate state profile-controlling and plugging agent provided by the present invention has very high intensity, resistance to flushing very capable, and water plugging effect is better.
Embodiment
Embodiment 1
Proportioning raw materials (parts by weight)
Acrylamide monomer 100, vinylformic acid 300, N, N-methylene bisacrylamide 0.5, initiator 1, functional stuffing 100, alkaline matter 10, the Tripotassium iron hexacyanide 2, water 600.
By water, vinylformic acid, acrylamide monomer, N, N-methylene bisacrylamide, the Tripotassium iron hexacyanide mix by proportioning, add functional stuffing at 20 degrees celsius, alkaline matter is added after stirring, regulate pH value 7.0, add initiator, temperature controls at 40-50 degree Celsius, be polymerized 2-3 hour plastic, then carry out granulation, oven dry, pulverizing rear mistake 60 mesh sieve.
Embodiment 2
Acrylamide monomer 150, vinylformic acid 500, N, N-methylene bisacrylamide 0.8, initiator 2, alkaline matter 30, the Tripotassium iron hexacyanide 2.2, water 600.
By water, vinylformic acid, acrylamide monomer, N, N-methylene bisacrylamide, the Tripotassium iron hexacyanide mix by proportioning, add functional stuffing at 20 degrees celsius, alkaline matter is added after stirring, regulate pH value 7.0, add initiator, temperature controls at 40-50 degree Celsius, be polymerized 2-3 hour plastic, then carry out granulation, oven dry, pulverizing rear mistake 60 mesh sieve.
Claims (5)
1. a particulate state profile-controlling and plugging agent, is characterized in that, the raw material that described profile-controlling and plugging agent comprises following weight parts is made:
Acrylamide monomer 100-200, vinylformic acid 300-500, N, N-methylene bisacrylamide 0.5-1, initiator 1-2, functional stuffing 0-400, alkaline matter 10-50, Tripotassium iron hexacyanide 2-3, water 500-700.
2. particulate state profile-controlling and plugging agent according to claim 1, is characterized in that, described initiator is the mixture that persulphate and sodium bisulfite form according to weight ratio 1:1.
3. particulate state profile-controlling and plugging agent according to claim 1, is characterized in that, described functional stuffing is one in clay, wilkinite, xylogen, diatomite or its any mixture.
4. particulate state profile-controlling and plugging agent according to claim 1, is characterized in that, described alkaline matter is sodium hydroxide or sodium bicarbonate.
5. the particulate state profile-controlling and plugging agent according to any one of claim 1-4, is characterized in that, the method for making of described profile-controlling and plugging agent comprises the steps:
By water, vinylformic acid, acrylamide monomer, N, N-methylene bisacrylamide, the Tripotassium iron hexacyanide mix by proportioning, add functional stuffing at 20 degrees celsius, alkaline matter is added after stirring, adjust ph, 7.0, adds initiator, and temperature controls at 40-50 degree Celsius, be polymerized 2-3 hour plastic, then carry out granulation, oven dry, pulverizing rear mistake 60 mesh sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534826.0A CN105062446A (en) | 2015-08-27 | 2015-08-27 | Granular profile control water-plugging agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534826.0A CN105062446A (en) | 2015-08-27 | 2015-08-27 | Granular profile control water-plugging agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105062446A true CN105062446A (en) | 2015-11-18 |
Family
ID=54491976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510534826.0A Pending CN105062446A (en) | 2015-08-27 | 2015-08-27 | Granular profile control water-plugging agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105062446A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010492A (en) * | 2016-05-20 | 2016-10-12 | 重庆科技学院 | Degradable high-strength temporary blocking agent and preparation method thereof |
| CN106589257A (en) * | 2016-12-09 | 2017-04-26 | 孙安顺 | Preparation method of lignin grafted and copolymerized polymer flocculation type profile modifying/water plugging agent |
| CN106634904A (en) * | 2016-11-10 | 2017-05-10 | 仇颖超 | Preparation method of high-temperature and high-salinity water shutoff agent special for oil well |
| CN107573912A (en) * | 2017-10-23 | 2018-01-12 | 中国石油大学(华东) | Mud cake elasticity agent, its preparation method and application and mud cake molding simulation method |
| CN110819324A (en) * | 2019-10-24 | 2020-02-21 | 白成才 | Profile control water shutoff agent and preparation method thereof |
-
2015
- 2015-08-27 CN CN201510534826.0A patent/CN105062446A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106010492A (en) * | 2016-05-20 | 2016-10-12 | 重庆科技学院 | Degradable high-strength temporary blocking agent and preparation method thereof |
| CN106010492B (en) * | 2016-05-20 | 2018-11-13 | 重庆科技学院 | degradable high-strength temporary blocking agent and preparation method thereof |
| CN106634904A (en) * | 2016-11-10 | 2017-05-10 | 仇颖超 | Preparation method of high-temperature and high-salinity water shutoff agent special for oil well |
| CN106589257A (en) * | 2016-12-09 | 2017-04-26 | 孙安顺 | Preparation method of lignin grafted and copolymerized polymer flocculation type profile modifying/water plugging agent |
| CN107573912A (en) * | 2017-10-23 | 2018-01-12 | 中国石油大学(华东) | Mud cake elasticity agent, its preparation method and application and mud cake molding simulation method |
| CN107573912B (en) * | 2017-10-23 | 2020-03-31 | 中国石油大学(华东) | Mud cake elasticizer, preparation method and application thereof, and mud cake forming simulation method |
| CN110819324A (en) * | 2019-10-24 | 2020-02-21 | 白成才 | Profile control water shutoff agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105062446A (en) | Granular profile control water-plugging agent | |
| CN102295729B (en) | Preparation method of absorbent resin plugging agent | |
| CN106317321B (en) | It is used to prepare the composition of underground crosslinking plural gel and crosslinking plural gel prepared therefrom | |
| CN102952533B (en) | Composite cross-linked polymer weak gel oil displacement agent and preparation method thereof | |
| CN103409130A (en) | Multi-component acid pressure temporary plugging additive and preparation method thereof | |
| CN106675540A (en) | Temperature-resistant salt-resistant profile control plugging agent and preparation method thereof | |
| CN104513341A (en) | Slow-expansion water-absorbable salt-resistant gel particle, and preparation and applications thereof | |
| CN104861953A (en) | Oil field fracture temporary plugging agent and preparation method thereof | |
| CN106479463A (en) | Retarded crosslinking high intensity frozen glue profile-controlling and plugging agent | |
| CN103374342A (en) | Profile control and water plugging agent and method for oil field | |
| CN104099074A (en) | Volume fracturing reconstruction crack plugging agent and water plugging construction method | |
| CN104710568A (en) | Preparation method of retarding swelling anti-salt viscoelastic particle profile control agent | |
| CN106317315B (en) | A kind of reservoir fractures closure sealing agent | |
| CN103044618A (en) | Method for preparing alkali-resistant water-absorbent resin suitable for oil well cement paste | |
| CN106147738B (en) | A kind of oil deposit deep part profile control agent and preparation method thereof | |
| CN109384889B (en) | Polymer with selective water plugging function and preparation method and application thereof | |
| CN105602543A (en) | Acid fracturing temporary plugging agent and preparation method thereof | |
| CN106958438B (en) | A kind of method for removing blockage of polymer flooding blocking well | |
| CN107033864A (en) | A kind of preparation method of sealing agent | |
| CN1333036C (en) | Pre-crosslinked granular plugging agent and its production | |
| CN105820804A (en) | High-salinity-resistant reservoir in-depth fluid diversion chemical agent as well as preparation method and application thereof | |
| CN105968264B (en) | A kind of preparation method of cation hydroexpansivity pre-crosslinked gel particle | |
| CN103923626B (en) | A kind of chemical plugging agent for oilwell water shutoff and using method thereof | |
| CN102153698B (en) | Preparation method of solid cement retarder | |
| CN106749899B (en) | A kind of preparation method of high-temperature-resistant high-salt profile control and water plugging polymer gelatinizing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |
|
| WD01 | Invention patent application deemed withdrawn after publication |